diff options
| author | Rémi Verschelde <rverschelde@gmail.com> | 2019-06-15 23:06:02 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-06-15 23:06:02 +0200 |
| commit | 1e483d7c732b601b1dda95bb6ff736c378d11e1a (patch) | |
| tree | c6d0eafba107447e6ab77eb36ef81d8ef4b2930f /platform/javascript/os_javascript.cpp | |
| parent | f4c7d4c5d9a56cdae5222797a0424fbac266dacf (diff) | |
| parent | 31cc1bdb58708101022c43aba4130f7a7366b337 (diff) | |
Merge pull request #29786 from dotdigitalgroup/hidpi-javascript-fix-master
Fix pointer position in hidpi-corrected resolutions on web
Diffstat (limited to 'platform/javascript/os_javascript.cpp')
| -rw-r--r-- | platform/javascript/os_javascript.cpp | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/platform/javascript/os_javascript.cpp b/platform/javascript/os_javascript.cpp index e7981bf576..bee7592aca 100644 --- a/platform/javascript/os_javascript.cpp +++ b/platform/javascript/os_javascript.cpp @@ -70,6 +70,20 @@ static bool is_canvas_focused() { /* clang-format on */ } +static Point2 correct_canvas_position(int x, int y) { + int canvas_width; + int canvas_height; + emscripten_get_canvas_element_size(NULL, &canvas_width, &canvas_height); + + double element_width; + double element_height; + emscripten_get_element_css_size(NULL, &element_width, &element_height); + + x = (int)(canvas_width / element_width * x); + y = (int)(canvas_height / element_height * y); + return Point2(x, y); +} + static bool cursor_inside_canvas = true; EM_BOOL OS_JavaScript::fullscreen_change_callback(int p_event_type, const EmscriptenFullscreenChangeEvent *p_event, void *p_user_data) { @@ -285,7 +299,7 @@ EM_BOOL OS_JavaScript::mouse_button_callback(int p_event_type, const EmscriptenM Ref<InputEventMouseButton> ev; ev.instance(); ev->set_pressed(p_event_type == EMSCRIPTEN_EVENT_MOUSEDOWN); - ev->set_position(Point2(p_event->canvasX, p_event->canvasY)); + ev->set_position(correct_canvas_position(p_event->canvasX, p_event->canvasY)); ev->set_global_position(ev->get_position()); dom2godot_mod(p_event, ev); switch (p_event->button) { @@ -349,7 +363,7 @@ EM_BOOL OS_JavaScript::mousemove_callback(int p_event_type, const EmscriptenMous OS_JavaScript *os = get_singleton(); int input_mask = os->input->get_mouse_button_mask(); - Point2 pos = Point2(p_event->canvasX, p_event->canvasY); + Point2 pos = correct_canvas_position(p_event->canvasX, p_event->canvasY); // For motion outside the canvas, only read mouse movement if dragging // started inside the canvas; imitating desktop app behaviour. if (!cursor_inside_canvas && !input_mask) @@ -666,7 +680,7 @@ EM_BOOL OS_JavaScript::touch_press_callback(int p_event_type, const EmscriptenTo if (!touch.isChanged) continue; ev->set_index(touch.identifier); - ev->set_position(Point2(touch.canvasX, touch.canvasY)); + ev->set_position(correct_canvas_position(touch.canvasX, touch.canvasY)); os->touches[i] = ev->get_position(); ev->set_pressed(p_event_type == EMSCRIPTEN_EVENT_TOUCHSTART); @@ -691,7 +705,7 @@ EM_BOOL OS_JavaScript::touchmove_callback(int p_event_type, const EmscriptenTouc if (!touch.isChanged) continue; ev->set_index(touch.identifier); - ev->set_position(Point2(touch.canvasX, touch.canvasY)); + ev->set_position(correct_canvas_position(touch.canvasX, touch.canvasY)); Point2 &prev = os->touches[i]; ev->set_relative(ev->get_position() - prev); prev = ev->get_position(); |